BOTDEFENSE::captcha_age¶

Description¶

Returns the age of the CAPTCHA challenge in seconds. This is only
relevant if the value of BOTDEFENSE::captcha_status is “correct”;
otherwise, -1 is returned.
Syntax
BOTDEFENSE::captcha_age

Warning

Deprecated in BIG-IP Next v20.0.1

Syntax¶

BOTDEFENSE::captcha_age

BOTDEFENSE::captcha_age¶

Return Value¶

Returns the age of the CAPTCHA challenge in seconds, or -1 if not applicable.

Valid During¶

BOTDEFENSE_ACTION

Examples¶

# EXAMPLE: Send CAPTCHA challenge and validate the response, but to avoid
 # blocking requests to which CAPTCHA challenge cannot be sent (non-HTML pages),
 # send the CAPTCHA challenge on HTML pages after 30 seconds of aging, which is
 # before the expiration of the answer.
 when BOTDEFENSE_ACTION {
     if {[BOTDEFENSE::action] eq "allow"} {
         if {[BOTDEFENSE::captcha_status] eq "correct"} {
             if {    ([BOTDEFENSE::cs_allowed]) &&
                     ([BOTDEFENSE::captcha_age] >= 30)} {
                 BOTDEFENSE::action captcha_challenge
             }
         } else {
             if {[BOTDEFENSE::action captcha_challenge] ne "ok"} {
                 if {[BOTDEFENSE::action custom_response {
                     login failed because you may not be human
                 }] ne "ok"} {
                     BOTDEFENSE::action tcp_rst
                 }
             }
         }
     }
 }

Change Log¶

Introduced: 12.1
Deprecated: 20.0.1

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